In order to compensate for the human visual limitations in energyspectrum and resolution under weak light environmentthe avalanche photodiode (APD) was used to establish a photon counting imaging experimental platform.Under the condition that the set ambient light illumination was 104 lxthe sampling periods were respectively 10 ms2.6 ms and 780 μsthree groups of the photon counting image sequenceswhich could demonstrate the target characteristicswere obtained.The technique of multiframe accumulation was applied to the target detection according to the different detection requirements.The appropriate number of the frames can be selected to ensure higher frame frequency.